Safety blade



FIG. 1 is a front, top and right side perspective view of a safety bladeshowing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a right side elevational view thereof.

I claim the ornamental design for a safety blade, as shown anddescribed.